| /* |
| * Copyright 2000-2013 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.jetbrains.plugins.groovy.intentions.conversions; |
| |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiClass; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiModifier; |
| import com.intellij.psi.PsiType; |
| import com.intellij.psi.codeStyle.JavaCodeStyleManager; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.plugins.groovy.intentions.base.Intention; |
| import org.jetbrains.plugins.groovy.intentions.base.PsiElementPredicate; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrStatement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariableDeclaration; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.blocks.GrOpenBlock; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.branch.GrReturnStatement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod; |
| import org.jetbrains.plugins.groovy.lang.psi.util.GroovyPropertyUtils; |
| |
| /** |
| * @author Max Medvedev |
| */ |
| public class ConvertSimpleGetterToPropertyIntention extends Intention { |
| @Override |
| protected void processIntention(@NotNull PsiElement element, Project project, Editor editor) throws IncorrectOperationException { |
| GrMethod method = (GrMethod)element.getParent(); |
| |
| GrStatement statement = method.getBlock().getStatements()[0]; |
| |
| GrExpression value; |
| if (statement instanceof GrReturnStatement) { |
| value = ((GrReturnStatement)statement).getReturnValue(); |
| } |
| else { |
| value = (GrExpression)statement; |
| } |
| |
| String fieldName = GroovyPropertyUtils.getPropertyNameByGetter(method); |
| |
| String[] modifiers; |
| if (method.hasModifierProperty(PsiModifier.STATIC)) { |
| modifiers = new String[]{PsiModifier.STATIC, PsiModifier.FINAL, }; |
| } |
| else { |
| modifiers = new String[]{PsiModifier.FINAL}; |
| } |
| GrVariableDeclaration declaration = GroovyPsiElementFactory.getInstance(project) |
| .createFieldDeclaration(modifiers, fieldName, value, method.getReturnType()); |
| |
| PsiClass aClass = method.getContainingClass(); |
| PsiElement replaced = aClass.addBefore(declaration, method); |
| JavaCodeStyleManager.getInstance(project).shortenClassReferences(replaced); |
| |
| method.delete(); |
| } |
| |
| |
| @NotNull |
| @Override |
| protected PsiElementPredicate getElementPredicate() { |
| return new PsiElementPredicate() { |
| @Override |
| public boolean satisfiedBy(PsiElement element) { |
| PsiElement parent = element.getParent(); |
| if (!(parent instanceof GrMethod) || ((GrMethod)parent).getNameIdentifierGroovy() != element) return false; |
| |
| GrMethod method = (GrMethod)parent; |
| |
| GrOpenBlock block = method.getBlock(); |
| if (block == null) return false; |
| |
| GrStatement[] statements = block.getStatements(); |
| if (statements.length != 1) return false; |
| |
| if (!GroovyPropertyUtils.isSimplePropertyGetter(method)) return false; |
| if (GroovyPropertyUtils.findFieldForAccessor(method, true) != null) return false; |
| |
| |
| GrStatement statement = statements[0]; |
| if (!(statement instanceof GrReturnStatement && ((GrReturnStatement)statement).getReturnValue() != null || |
| statement instanceof GrExpression && ((GrExpression)statement).getType() != PsiType.VOID)) { |
| return false; |
| } |
| return true; |
| } |
| }; |
| } |
| } |